Low-temperature synthesis of star-shaped PbS nanocrystals in aqueous solutions of mixed cationic/anionic surfactants

被引：258

作者：

Zhao, N ^{[1
]}

Qi, LM ^{[1
]}

机构：

[1] Peking Univ, Coll Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China

来源：

ADVANCED MATERIALS | 2006年 / 18卷 / 03期

关键词：

D O I：

10.1002/adma.200501756

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Uniform, well-defined star-shaped PbS nanocrystals with tunable sizes (40-100 nm, see Figure), as well as octahedral PbS nanocrystals, have been readily synthesized in aqueous solutions containing a mixture of the surfactants cetyltrimethylammonium bromide/sodium dodecyl sulfate (CTAB/SDS) at low temperature (80 degrees C). The size of the PbS nanostars can be accurately controlled by adjusting the reaction time. This result may open new avenues for the green chemical synthesis of shape-controlled semiconductor nanocrystals.

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页码：359 / +

页数：5

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